/**
 * @license
 * Copyright LOGO YAZILIM SANAYİ VE TİCARET A.Ş.
 *
 * Save to the extent permitted by law, you may not use, copy, modify,
 * distribute or create derivative works of this material or any part
 * of it without the prior written consent of LOGO YAZILIM SANAYİ VE TİCARET A.Ş. Limited.
 * Any reproduction of this material must contain this notice.
 */
// @ts-ignore
import { Constructor } from '@open-wc/dedupe-mixin';

/**
 * A mixin to handle `focused` and `focus-ring` attributes based on focus.
 */
export declare function FocusMixin<T extends Constructor<HTMLElement>>(base: T): T & Constructor<FocusMixinClass>;

export declare class FocusMixinClass {
  protected readonly _keyboardActive: boolean;

  /**
   * Override to change how focused and focus-ring attributes are set.
   */
  protected _setFocused(focused: boolean): void;

  /**
   * Override to define if the field receives focus based on the event.
   */
  protected _shouldSetFocus(event: FocusEvent): boolean;

  /**
   * Override to define if the field loses focus based on the event.
   */
  protected _shouldRemoveFocus(event: FocusEvent): boolean;
}